ICD-10-CM FY2027 diagnosis code

Z91.199: Patient's noncompliance with other medical treatment and regimen due to unspecified reason

Billable codeValid for dates of service October 1, 2026 to September 30, 2027

Z91.199 is a billable ICD-10-CM diagnosis code for patient's noncompliance with other medical treatment and regimen due to unspecified reason. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

Z91.199 questions

Is Z91.199 a billable code?

Yes. Z91.199 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.

What does Z91.199 mean?

Z91.199 is the ICD-10-CM code for Patient's noncompliance with other medical treatment and regimen due to unspecified reason. It is in chapter 22, Factors influencing health status and contact with health services (Z00-Z99).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.